Add Bountysource badge to README

Because you have some open bounties, we thought you might want to display this badge in your README!
I guess I forgot to add a file
Fix 'item undefined in mpris' error
try to find sql queries with CRLF endings if none are found with LF endings
New API key for shoutcast, revert 22dd56454f701e0b96d6228ccc63aa5b57306739 and fix #282
replaced AOL by Radionomy here too
install desktop file, icons and manpage with install-linux target
update standards version, add vcs adresses
add uninstall-linux to phony
get the relative path via python instead of perl
remove python stuff from Makefile
remove "SED ?= sed" line from Makefile
New regexp for cl gcc -v thanks @johnmurrayvi fix #176

This allow building on a French version of Windows/Visual Studio
see https://bugzilla.mozilla.org/show_bug.cgi?id=448573
standardize ifeqs
Flickr's API now only use SSL

see http://code.flickr.net/2014/04/30/flickr-api-going-ssl-only-on-june-27th-2014/
Bump extension version for extensions that were changed recently
Better DBus introspect on MPRIS
Faster/leaner introspectable
Fixing some TrackList stuff for MPRIS
Merge pull request #303 from darealshinji/sb-trunk-oldxul

install desktop file, icons and manpage with install-linux target